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 Today's 6 minute english is about global warming. Global warming is a big problem for all countries. The problems that global warming can cause is critical to mankind. It can cause extreme weather, rising sea levels, and melting polar ice caps and more. However, poor countries don't have the resources to solve the problem. So, the rich countries have already pledged and promised a hundred billion dollars a year, starting from 2020, to solve this problem. However, it is not a big amount of money to solve the problem.  After the devastating effects of Hurricane Sandy, New York City invested ten billion dollars on storm defences to protect Manhattan – and Wall Street.